CN209245569U - One kind leaking hydrogen pressure sealing fixture for generator flange - Google Patents
One kind leaking hydrogen pressure sealing fixture for generator flange Download PDFInfo
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- CN209245569U CN209245569U CN201821421484.7U CN201821421484U CN209245569U CN 209245569 U CN209245569 U CN 209245569U CN 201821421484 U CN201821421484 U CN 201821421484U CN 209245569 U CN209245569 U CN 209245569U
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- pressure sealing
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Abstract
The utility model belongs to mechanical assembly technique field, and in particular to one kind leaks hydrogen pressure sealing fixture for generator flange.In the utility model, fixture one, fixture two are closely snapped together, the mutually symmetrical identical structure of fixture one, fixture two；Fixture one includes otic placode, end plate, shell, and shell is semi-cylindrical shape, and cylinder center is provided with hole for injecting glue, and one end is welded with end plate, is provided with centrosymmetric two through-holes on end plate, and the outer wall of end plate and shell is welded with symmetrical otic placode.The utility model clamp structure is simple and reliable, and use is simple and efficient, can be realized generator hydrogen gas leakage pressure sealing.
Description
Technical field
The utility model belongs to mechanical assembly technique field, and in particular to one kind leaks hydrogen pressure sealing for generator flange
Use fixture.
Background technique
Two WWER-1000 nuclear power units of nuclear power station first stage of the project in field gulf, using the Т В В-of Russia's supply of material
1000-2y3 generator is hydrogen_cooling unit.After the nuclear power station T206 overhaul of field gulf, the leakage of generator hydrogen gas lines flange
Hydrogen.Leak position is very special at this, is located at flange and generator bottom body connection, as shown in Figure 1；
The leak source is special to be that risk of explosion with higher is another first is that leaking medium is hydrogen and leakage rate is larger
A more important reason is that common flange clamp is not suitable for operating condition at this, can not be fixed again using straight tube fixture, in injecting glue
It is easy to generate play in the process, will be unable to realize sealing.The similar structures of other media can be using welding when leaking
Method fixture is connect with apparatus body, solve the problems, such as the play of fixture, but herein leaking medium be hydrogen, be not available weldering
The method processing connect, it is therefore desirable to formulate one and not need to get angry and it is empty can to form a complete sealing so that fixture is fixed
The pressure sealing scheme of chamber.
Summary of the invention
The technical issues of the utility model solves: the utility model provides a kind of for generator flange leakage hydrogen pressure sealing
With fixture, clamp structure is simple and reliable, and use is simple and efficient, can be realized generator hydrogen gas leakage pressure sealing.
The technical solution adopted in the utility model:
One kind leaking hydrogen pressure sealing fixture, including fixture one, fixture two, fixture one, fixture two for generator flange
It closely snaps together, the mutually symmetrical identical structure of fixture one, fixture two；Fixture one includes otic placode, end plate, shell, shell
For semi-cylindrical shape, cylinder center is provided with hole for injecting glue, and one end is welded with end plate, and centrosymmetric two through-holes are provided on end plate,
The outer wall of end plate and shell is welded with symmetrical otic placode.
The utility model has the beneficial effects that
Fixture provided by the utility model utilizes the freedom degree of the fixture otic placode bolt limitation fixture radial direction of design；Pass through
The original fastening bolt of flange is changed to long bolt, is emitted using back and first fastens flange, long bolt is then passed through into fixture again,
The fixation for just realizing fixture in this way is fastened using nut in fixture one end.Fixture is realized axially along the pipe by long bolt
Restriction effect, make fixture that play will not occur during injecting glue；It is applied on the surface of bolt and fixture being likely to contact
Sealant is smeared, prevents fixture metal from colliding with and generates spark, it is quick-fried to prevent hydrogen.
Detailed description of the invention
Fig. 1 is leak position structural schematic diagram in the prior art；
Fig. 2 is that a kind of generator flange leakage hydrogen pressure sealing that is used for provided by the utility model is illustrated with clamp structure
Figure；
Fig. 3 is fixture sectional view；
In figure: 1- fixture one, 2- fixture two, 3- through-hole, 4- hole for injecting glue, 5- otic placode, 6- end plate, 7- shell.
Specific embodiment
In the following with reference to the drawings and specific embodiments to provided by the utility model a kind of with pressure for generator flange leakage hydrogen
Leak stopping is described in further detail with fixture.
As shown in Fig. 2, provided by the utility model a kind of for generator flange leakage hydrogen pressure sealing fixture, including folder
Has one 1, fixture 22, fixture 1, fixture 22 closely snap together, the mutually symmetrical identical knot of fixture 1, fixture 22
Structure, by taking fixture 1 as an example, as shown in figure 3, fixture 1 includes otic placode 5, end plate 6, shell 7, shell 7 is semi-cylindrical shape, circle
Cylinder center is provided with hole for injecting glue 4, and one end is welded with end plate 6, and centrosymmetric two through-holes 3, end plate 6 and shell 7 are provided on end plate 6
Outer wall be welded with symmetrical otic placode 5.
According to the design feature of leakage position, the bolt of flanged joint ontology is single ended bolt, and totally four, threaded one end connects
It is connected to engine block shell, by the way that the original fastening bolt of flange is changed to long bolt, is emitted using back and first fastens flange,
After flange bolt is successively changed to long bolt, then by long bolt across Folder through-holes 3, this is fastened using nut in fixture one end
Sample just realizes the fixation of fixture.Use copper spanner during removing bolt and installs fixture when field conduct, in bolt and
Sealant is smeared on the surface of fixture being likely to contact, and preventing from colliding with generates spark.By long bolt to fixture realize along
The restriction effect of pipeline axial direction, makes fixture that play will not occur during injecting glue.It is limited using the otic placode bolt of the fixture of design
The freedom degree of fixture radial direction has been made, injecting glue is sealed to fixture after success installs fixture, completes to block leak source.
One kind leaking hydrogen pressurized leaking stoppage method for generator flange, includes the following steps:
Step 1, a bolt for removing Fig. 1 leakage flange, by the way that the original fastening bolt of flange is changed to long bolt,
It is emitted using back and first fastens flange, the bolt of flange is successively changed to long bolt；
Fixture 1,22 groups of fixture are combined into a complete fixture by step 2, such as figure two, and 6 opposite side of end plate is close to power generation
Long bolt is passed through Folder through-holes 3, is fastened on the outside of fixture end plate 6 using nut, realize the fixation of fixture by machine；
Copper spanner is used during removing bolt and installs fixture when step 3, field conduct；
Step 4 smears sealant on the surface of bolt and fixture being likely to contact, and preventing from colliding with generates spark；
Bolt is passed through otic placode 5 by step 5, installs fixture otic placode bolt, and installation nut is simultaneously tight by fixture 1, fixture 22
Gu the freedom degree of the otic placode bolt limitation fixture radial direction using the fixture of design；
Injecting glue is sealed to fixture after step 6, installs fixture, leak source is blocked.
Claims (1)
1. one kind leaks hydrogen pressure sealing fixture for generator flange, it is characterised in that: including fixture one (1), fixture two
(2), fixture one (1), fixture two (2) closely snap together, the mutually symmetrical identical structure of fixture one (1), fixture two (2)；
Fixture one (1) includes otic placode (5), end plate (6), shell (7), and shell (7) is semi-cylindrical shape, and cylinder center is provided with hole for injecting glue
(4), one end is welded with end plate (6), is provided with centrosymmetric two through-holes (3) on end plate (6), end plate (6) and shell (7) it is outer
Wall is welded with symmetrical otic placode (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821421484.7U CN209245569U (en) | 2018-08-31 | 2018-08-31 | One kind leaking hydrogen pressure sealing fixture for generator flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821421484.7U CN209245569U (en) | 2018-08-31 | 2018-08-31 | One kind leaking hydrogen pressure sealing fixture for generator flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209245569U true CN209245569U (en) | 2019-08-13 |
Family
ID=67517339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821421484.7U Active CN209245569U (en) | 2018-08-31 | 2018-08-31 | One kind leaking hydrogen pressure sealing fixture for generator flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209245569U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109000082A (en) * | 2018-08-31 | 2018-12-14 | 江苏核电有限公司 | One kind is for generator flange leakage hydrogen pressure sealing fixture and blocking method |
| CN111156414A (en) * | 2019-12-30 | 2020-05-15 | 清华大学 | Non-external function type hydrogen leakage safety protection system and method |
-
2018
- 2018-08-31 CN CN201821421484.7U patent/CN209245569U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109000082A (en) * | 2018-08-31 | 2018-12-14 | 江苏核电有限公司 | One kind is for generator flange leakage hydrogen pressure sealing fixture and blocking method |
| CN109000082B (en) * | 2018-08-31 | 2024-01-12 | 江苏核电有限公司 | Clamp for generator flange hydrogen leakage under-pressure plugging and plugging method |
| CN111156414A (en) * | 2019-12-30 | 2020-05-15 | 清华大学 | Non-external function type hydrogen leakage safety protection system and method |
| CN111156414B (en) * | 2019-12-30 | 2021-06-04 | 清华大学 | Non-external function type hydrogen leakage safety protection system and method |
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